Fix build failures on PG

Honestly I don't think the tests that are fixed by this change should
have been merged. Passing a range or an array to `where` has a special
meaning. We need to solve the problem more concretely without overriding
the behavior that is present for *every* other type.

However, the damage has been done. These changes were in 5.1, so we need
a deprecation cycle to remove it.

activerecord/lib/active_record/relation/predicate_builder.rb

@@ -85,6 +85,10 @@ def expand_from_hash(attributes)
               expand_from_hash(query).reduce(&:and)
             end
             queries.reduce(&:or)
+          # FIXME: Deprecate this and provide a public API to force equality
+          elsif (value.is_a?(Range) || value.is_a?(Array)) &&
+            table.type(key.to_s).respond_to?(:subtype)
+            BasicObjectHandler.new(self).call(table.arel_attribute(key), value)
           else
             build(table.arel_attribute(key), value)
           end